This book is about nebulae-- massive clouds of cosmic gas and dust set aglow by the borrowed light of stars. In cosmic terms, a nebula is as fleeting as a sunset or a campfire, and to many casual stargazers, just as beautiful. With stunning, full-color original images and easy-to-read descriptions, this book will delight “armchair astronomers” who wish to learn more about the workings of the universe and the lives and deaths of stars.